TheDesign

oftheOverallandATypeofDoorFrameof60TonsGantryCranespeaker：xxxTheMainContents

thebasisofthepapertheresearchcontentstheresearchmethodssummaryandoutlookTheBasisofThePaper1.TheDevelopmentofCrane

Inrecentyears,theroleoftheliftingtransportationmachineryisbeyondthescopeofauxiliaryequipmentduetothecontinuousdevelopmentofindustrialtechnology.Andthenthismachineryhasbeendirectlyusedintheproductionprocess.Ithasbeenthemainpartsoftheassemblyline.Tendency2.TheshortageofthedomesticcranesTheperformanceofproductsanddevelopmentabilityisweak;Thelevelofmanufacturingtechnologyislow;Theproductdetectionlevelisnothigh;Thefittingssupplyisinsufficientandthequalityispoor;Theupdateofproducttechnologystandardislagandislackofexecutiveforce.

TheResearchContents

TheDesignoftheOverallandATypeofDoorFrameof60TonsGantryCrane.Determiningtheoveralldesign,includingthedoorheight,themaingirdersspan,gatelegtypeandbasicsize,etc.Calculatingthestrengthofcomponentsorstructureofthecrane,thencheckingthestrengthandstability.theresearchmethods1.

Thedesignparameters

elevatingcapacityQ=60ttypeofdoorlegAliftingaltitudeH=12mLiftingspeedv=10m/minrunningspeedoflittlevehicleVc=45m/minrunningspeedofbigvehiclev=42m/minClassificationgrade

ofthewholemachineaverageA5ClassificationgradeofmechanismM5structuresingleboxesanddoublebeamsmaterialSteelstructure2.TheTypeofLoadTYPECONTENTSWORKINGCONDITIONSMARGINofSAFETYⅠfatigue,wearandheatloadthegeneralworkingconditions1.5Ⅱstaticstrength,thestabilityofthelocalmechanismsstabilityandstabilityagainstoverturningthemostunfavorableworkingconditions1.33Ⅲtheintensityofacertainsafetydeviceagainstthestormblowawaynoneworkingstate1.153．ConfirmingAPreliminarySchemeThedoorframe:typeAlegs,singlebox,doublebeamsstructure.TheheightofmaingirderisH=15m,thespanisL=30m.Thehingetypeoflegsistworigidlegs.4.DesigntheDimensionsThedeterminationofmaingirdergeometrysize.GeometricFeaturesofGirdersAreas:SL=48976mm2Momentofinertia:Ix=Iy=Sectionmodulus：Wx=Wy=Thedeterminationofcross-sectiongeometrysizeofdoorlegs.GeometricFeaturesofDoorLegsAreas:ST=60576mm2Momentofinertia:Ix=Iy=Sctionmodulus：Wx=Wy=4.CaulculateLoad

ThetypesofloadThevalueofloadDistributedloadofportalframeThepressureoflittlevehicle’sroolsTheinertiaforceoflittlevehiclewhilebrakingTheinertiaforceofbigvehiclewhilebrakingWindLoadsWindloadsThevalueofloadsOncargosOnlittlevehicleOnmainbeamOnlegs5.CaulculatetheInternalForceofGirderTheinternalforcediagramsofgirder

TypeofloadThepositionoflittlecardistributedloadofgirdermovingloadmidspan-769137102326cantilever-7691371-2601-1301TypeofloadThepositionoflittlecarTheinertiaforceoflittlevehiclewhilebrakingCompositebendingmomentmidspan16881-6013778cantilever16881-3202151Theverticalin-planebendingmomentofgirderloadThepositionoflittlecarThefunctionofmidspan-4132cantilever-8552Thehorizontalin-planebendingmomentofgirder6.CheckingtheStrengthofGirderThemaximumvalueofbendingstressis:(1)Whilethelittlevehicleisatthemidspan.(2)WhileatthecantileveSo,theselectedsizemeetsthestrengthdemandofgirder.7.CaulculatetheInternalForceofDoorLegs.Whilethelittlevehicleislocatedinthethemaingirderacross.Whileatthecantilever.CheckingtheStrengthofDoorLegs.Themaximumvalueofthedoorlegsis:(whilethelittlevehicleislocatedinthemaingirderacross)So,theselectedsizemeetsthestrengthdemandofdoorlegs.SummaryandOutlookThedesignofthemainbeamsanddoorsleghasbeenillustratedindetailinthispaper.Inaccordancewithlimitstresscalculationmethodandallowablestresscalculationmethod,theauthorhascheckedthestrengthofthemainbeamsanddoorsleg.Intheend,theauthorhasdeterminedthefinaldecisionoftheappropriatesizeinthemainbeamanddoorslegflatplane.AnewstageofthedesignofthecraneElectronicComputerTechnologyOptimizationofEn